The free musics are free jazz and free improvisation, genres rooted in the sixties that continue today under different circumstances. Their approach was originally exploratory free playing, which encouraged the maximum range of sound and feeling. In Europe they were and still are accepted genres for career professionals. In North America this is only true for free jazz, a style that continues basically unchanged since its origins. Free improvisation that does not communicate a jazz or free jazz identity and feeling is outside the range of media attention, art music audiences, and credentialing institutions.

Jack Wright is a saxophonist who turned to playing free music in 1979, and has toured widely in North America and Europe ever since. He is open to playing with others, whether experienced or not, and approaches his own playing with a questioning spirit. He has been variously called "the Johnny Appleseed of free improvisation,” “an undergrounder by design,” and "the king of experimental free improvisation."

Improvisation: "The Free Musics will probably be considered the most important book on free playing since Derek Bailey's Improvisation. He's actually doing what Derek said musicians never do, talking about what it's like to improvisale, and with a really nuanced understanding of Free Jazz and the 60s revolution, Free Improvisation, the Free Jazz Revival. "